Growth Equity
Mainsail
Mainsail takes minority stakes in growing companies, usually without full control, from Austin, Texas, USA. It states a focus on software & internet.
Stated investment criteria
What Mainsail says it buys
Read from Mainsail’s own website in August 2026. This is what the firm says it buys, not what anyone has recorded it buying, and figures are shown in the currency the firm itself used - nothing here is converted. Every line links to the page it was read from.
| People listed on its team page | 931 |
Source
A stated mandate is a firm’s description of itself and was true of the page on the day it was read; firms widen and narrow what they will look at without updating the site. The team figure counts the people the firm shows on one team page, so it is a floor rather than a headcount: firms that split their team across tabs or load it in pages will read low. Nothing here is a commitment by Mainsail to consider any particular business, and nothing on this page is represented as being for sale.
Regulatory record
How Mainsail is registered
From this firm's Form ADV, the annual filing every registered and exempt investment adviser makes to the SEC.
| Adviser status | SEC registered |
| Regulatory assets under management | $4.0bn |
| Employees | 81 |
| Private funds advised | 14 · $4.0bn gross |
| SEC adviser number | CRD 157775 |
Portfolio
Disclosed holdings
Companies Mainsail lists on its own website. No investment years are published. 1 has a recorded transaction against it in the deal archive.
| Company | Invested | Years held | Recorded transaction |
|---|---|---|---|
| Anatomic Pathology Services Carmichael, CA Former | — | — | — |
| Apptega | — | — | — |
| Aspire | — | — | — |
| Bio Optronics | — | — | — |
| Boostlingo | — | — | — |
| Brilliant Earth | — | — | — |
| Cash Management Solutions | — | — | — |
| Centerbase | — | — | — |
| Chirohd | — | — | — |
| Commercial Landscaping Software Chesterfield, MO Former | — | — | — |
| Courtreserve | — | — | — |
| Esecuritel | — | — | — |
| Extensiv | — | — | — |
| Fexa | — | — | — |
| Fieldflo | — | — | — |
| Fieldroutes | — | — | — |
| Flight Schedule Pro | — | — | — |
| Flyntlok | — | — | — |
| Forensic Logic | — | — | — |
| Fullbay | — | — | — |
| Fusion | — | — | — |
| Gtreasury | — | — | — |
| Home Services Software Lehi, UT Current | — | — | — |
| Inn Flow | — | — | — |
| Innergy | — | — | — |
| Inspect Point | — | — | — |
| Instinct Science | — | — | — |
| Ips Learning | — | — | — |
| JobNimbus | — | — | — |
| Linenmaster | — | — | — |
| Liv | — | — | — |
| Ncontracts | — | — | — |
| Ncourt | — | — | — |
| Netchemia | — | — | — |
| Nexus | — | — | $25m 2016 |
| Nexus Systems | — | — | — |
| Novus Biologicals | — | — | — |
| Paylease | — | — | — |
| Perahealth | — | — | — |
| Planhub | — | — | — |
| Playmaker Health | — | — | — |
| Post-Acute Services Walnut Creek, CA Former | — | — | — |
| ProShop | — | — | — |
| Property Management Software Estero, FL Current | — | — | — |
| Red Oak | — | — | — |
| ResMan | — | — | — |
| Security Software Solutions ClearWater, FL Former | — | — | — |
| Semiconductor Technologies Lowell, MA Former | — | — | — |
| Server Optimization Software Charlotte, NC Former | — | — | — |
| ServiceCore | — | — | — |
| Servicetitan | — | — | — |
| Skimmer | — | — | — |
| SmartMoving | — | — | — |
| Sourcescrub | — | — | — |
| Steelhead Technologies | — | — | — |
| Steelwedge Software | — | — | — |
| Teamfront | — | — | — |
| The Bar Method | — | — | — |
| Togos | — | — | — |
| Zen Planner | — | — | — |
Compiled from Mainsail’s published portfolio page. Where a recorded transaction is shown, that company was the target of a reported deal and has most likely already been realised. Nothing here is represented as being for sale.
Valuation context
Transaction values in Software & Internet
What companies have actually sold for in software & internet, across 2,672 recorded transactions.
The full software & internet picture - most active acquirers, recent transactions and every investor in the sector.
For owners
Own a software & internet business?
The investors on this page acquire companies like yours. A confidential valuation costs nothing, commits you to nothing, and nobody is told you asked.
Request a confidential valuationFor investors
Is this Mainsail?
Claim this profile to correct anything wrong and tell us what you are looking for. We will send matching opportunities as they arise.
Claim or correct this profileTargeted buyer search
Which hundred of these would actually buy your business?
A researched shortlist with a verified deal-team contact for each, and the reason it is on the list. Fixed fee, from $1,450 - or we make the approach for you and hand you the conversations.
Comparable investors
Similar mandates
Other growth equity investors active in software & internet.